用所给的单词的适当形式填空。 1. You'd better put on the sports shoes , so that you will feel _________ (comfort) during the journey 2. He was proud of his son , who was the chief _________ (engine) of the project. 3. Due to his _________ (help) information , the policemen succeeded in catching the thieves. 4. I returned to my hometown after graduation because I didn't like the ________ (noisy) city. 5. The scientist was awarded Nobel Prize for his great ________ (invent). 6. The use of computers has greatly ________ (simply) my work. 7. We usually find it difficult to fully understand an _______ (art). 8. His _________ (appear) at the opening ceremony attracted many reporters. 9. He is responsible for research and _________ (develop) of new products in this company. 10. Although he was a __________ (create) painter , he was not accepted by the public in his early years.